Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
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2.7.2.2 GPS Auxiliary Serial Link
This 2-wire serial interface is a 1.8 V interface complying with V24 technical
specifications.
Default protocol is RTCM, and NMEA protocol is available by software
configuration via GPS baseband.
Pin description
Signal Pin # I/O I/O type Description
GPS_RXD0 3 O
1V8_CMOS
1X
CT104 - Receive serial data
GPS_TXD0 4 I 1V8_CMOS CT103 - Transmit serial data
WISMO Q2501
(DCE)
External
Application
(DTE)
GPS_TXD0
GPS_RXD0
Figure 20: Auxiliary GPS serial link